The rate of rotation of a solid disk with a radius of #2 m# and mass of #2 kg# constantly changes from #5 Hz# to #9 Hz#. If the change in rotational frequency occurs over #4 s#, what torque was applied to the disk?
1 Answer
Jan 21, 2018
Explanation:
The applied torque is
The reaction to this torque is
The magnitude of the torque is:
where
Substitute
To generate this toque, you need a force